Read a directory and export pretty directory list

// This script reads a directory of files.  After reading the directory specified it outputs the directory files.  
// Upon output, supplied functions manipulate each filename and format it to make the output filename look better. 
// e.g.: instead of output being 'my-good-looking-file.txt' it would look like 'My Good Looking File'.
 
// In order for the output to look better, you must put a hyphen (-) or an underscore (_) between each
// word that you want to be separated.
 
 
// function to strip off the file extension
function strip_ext($name) {
	$ext = strrchr($name, '.');
	if($ext !== false) {
		$name = substr($name, 0, -strlen($ext));
	}
	return $name;
}
// function to remove the hyphen or underscore from filename.
function removeHyphen($filename) {
	$target = $filename;
	$patterns[0] = '/-/';
	$patterns[1] = '/_/';
	$replacements[0] = ' ';
	$replacements[1] = ' ';
	$filename = preg_replace($patterns, $replacements, $target);
	return $filename;
}
// function to capatalize the first character of each word.  Must be called after
// the removal of the hyphen or underscore
function capFirstWord($word) {
	$cap = $word;
	$cap = explode(' ', $cap);
		foreach($cap as $key => $value) {
			$cap[$key] = ucfirst($cap[$key]); 
		}
	$word = implode(' ', $cap);
	return $word;
}
// Formats the file.  This is the main function that calls all functions explained above.
function formatFile($name) {
    $name = strip_ext($name);
    $name = removeHyphen($name);
    $name = capFirstWord($name);
    return $name;
}
// Sets up the directory you would like to use as the "reading" directory.
$mydir = dir('./dir');
	while(($file = $mydir->read()) !== false) {
		// Security - remove "." and ".." files (directories)
		if ($file != "." && $file != "..") {
			// Output.  This is what is actually outputed by the script and that shows
			// up on the screen (browser).
			echo "<p><a href='./dir/$file' title='Download $file'>".formatFile($file)."</a></p>";
		 }
	}
$mydir->close();